Shaping device



R. L. CARTER. SHAPING DEVICE. APPLICATION FILED APR. 17, 1922.

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RAY L. CARTER, 01E SYRACUSE, NEW YORK.

SHAPING DEVICE.

, Application filed April it, 192a. Serial No. assess.

new and useful Improvements in Shaping Devices, of which the followingis a specifi-' cation.

This invention relates to shapers, designed for use by-pattern makers,cabinetmakers, carpenters and the like, and has for its object toprovide a novel and simple device of the class for rounding and headingthe corners of patterns and various other wooden articles. A furtherobject is to provide a light, easily portable shaper, consisting of ahollow casing which encloses a high-speed electric motor, on thearmature shaft of which may be mounted rotary cut ters of various types,by which the corners and edges of wooden articles may be given differentshapes, in a ready and quick manner. A further object is to provide arelatively small and light shaper of the class, which may be held andoperated by one hand, said device being equipped with a conical head bywhich the device is guided and being provided with novel adjusting meansfor taking up looseness, as well as for facilitating the employment ofcutting tools of different size.

I attain these objects by the means set forth in the detaileddescription which follows and as illustrated by the accompanyingdrawing, in which Figure 1 is a side elevation of the complete device inthe act'of shaping a piece of wood. Fig. 2 is a front end view of thesame. Fig. 3 is a side elevation and partial Fig. 45 is a rear-end viewof the same. Fig. 5 is an enlarged side view of one form of cutter.Fig.6 is an edge view of the same. And Fig. 7 is a view of a cutteremployed for beading the corners of articles.

In the drawing, 2 represents the electric motor, having an armatureshaft 2'. 3 is the outer casing or shell which encloses the motor. therear end thereof being closed and provided with a hub-bearing 3, whichsupports the corrcs 'ioniiliug end of the arma ture shaft. The oppositeend of the casing is open and is closed by a conical cap'3 which may besecured to the said open end by any suitable means. The forward end of.the shaft 2' is provided with the usual fan 4, and thence extendsthrough the reduced end of the cap 3, in which it is rotatable, as ahearing. The inside of the cap 3 has a socket 3 in which is disposed aball-bearing 5 forthe shaft 2, the said bearingbeing adjustably held inplace by a set-screw 5'. The projecting end of the shaft 2' is threaded,and supports a cutting-tool 6, which corresponds to the tools shown inFigs. 5 and 6, and is employed for simply rounding the corners 'ofpatterns, and the like, as shown at 7 in: Fig. 1. The cutter 6 is heldin place by a tapering washer 8, the taper thereof preferablyregistering with the adjacent parts of the tool 6. By this constructionand arrangement, the tool is partially guided while performing its work,by the bevel face of the washer hearing against a fiat or other adjacentsurface of the work 7. The tool 6 and the washer 7 are detachably, buttightly, held in place by a sleeve nut 9 which screws on to the shaft2'. The adjustment afforded by the set-screw 5', enables the operator toset the inner side of the tool 6 closely against the flattened end ofthe cap 3*, as shown at w in Figs. 1 and 3. By this arrangement, thecorner of the work 7 cut by the tool 6 may be made perfectly smoothwhere said out intersects the adjacent plane face of the work 7, whichlies against theconical guiding portion 3 of the cap. This guidingportion is preferably formed at an angle of 45, as shown, but of courseany other desirable angle (not shown) may be employed, if the demands ofthe work require it. 10 represents a dust guard, which is supported bythe cap 3*, and is so positioned that it directs the shavings and dustaway from the operator, as well as from the work. The arrows in Fig. 2indicate the direction in which the cutter 6 rotates, as well as thecourse of the shavings and dust. The device as it appears in Fig. 2, ismoved by the operator along the corner of the work from left to right.The outer medial surface of the shell is preferably knurled, for aidingthe hand-grip during the operation of the device.

The cutters 6 are preferably constructed as shown in Figs. 5. 6 and 7,which shows the blades or teeth formed by cutting away right angleportions indicated at 6'. By this construction and arrangement, thecutters may be readily ground or dressed by the ordinary emery wheels,or manually by the Ordinary whetstones. The cutting edges of the bladesof the cutters may be formed in various shapes, for either rounding orbeading or otherwise shaping the corners of the work, as shown in Figs.6 and 7.

My shaper is extremely simple, light and compact, and for ordinarypattern and similar work need not be larger than shown in Figs. 1, 2, 3and' l. It performs its work best when operated at relatively highspeeds; is equally serviceable for shaping straight or curved cornersand edges, and may be moved rapidly over the work without danger ofchattering or otherwise marring the work.

Having thus described my what I claim, is-

1. A shaper comprising a rotary cutter having a plurality of curvedcutting blades, a shaft for driving said cutter, a pair of beveledguides arranged concentrically to said shaft and said cutter, thebeveled faces of said guides being arranged tangent to the curvature ofsaid blades, one of said guides being stationary, the other guide belngrotatable with the cutter, and means for ad usting said cutterrelatively to the stationary guide.

2. A shaper including a driven shaft, a rotary cutter mounted on saidshaft and having curvedcutting portions, a conical support for saidshaft, the reduced end of said support being in frictional engagementwith said cutter, and the angular face of said support being arrangedtangent to the curvature of said cutting portions and serving as a guidefor said cutter during the shaping operations, and a circular guideengaging the opposite side of said cutter and having an angular facearranged tangent to the curvature of said cutting portions.

invention,

3. A sha er comprising a driven shaft, a support dr said shaft, saidsupport having a circular beveled surface, a rotary cutter mounted onsaid shaft, said cutter having a plurality of curved cuttin blades oneside of said cutter engaging sai support, a beveled guard engaging theopposite side of said cutter, and the angular faces of said support andsaid guard being arranged at right angles to each other.

4. A shaper including a driven shaft, a stationary conical support forsaid shaft having a bearing face, a uide having a beveled face mountedon said shaft and spaced from said support, a rotary cutter havingradial blades mounted on said shaft between said support and said guideand engagin both of said parts, the angular faces of sai support andsaid guide being arranged at right angles and registering with theblades of said cutter. I

5. A rotary shaper comprising a motor driven shaft, a circular cutterhaving curved cutting edges mounted on said shaft, a cylindrical casingenclosing the motor and having a-conical portion whose angular surfaceis disposed tangent to the curvature of said cutting edges, and a washermounted concentrically to the cutterand having a beveled surface whoseplane is arranged at right angles to the plane of said conical portion.

6. A rotary shaper, comprising a motordriven shaft, a circular cutterhavin curved cutting edges mounted on said sha t, and a casing enclosingthe motor and having a conical portion whose angular surface is disposedtangent to the curvature of said cutting edges.

In testimony whereof I affix m si nature.

RAY L. AR rER.

